What is the first step in solving this system of equations by Substitution?

x = y = 3

y = x + 5

1.) Put both equations in slope-intercept form: y = mx + b

2.) Then, set the equations equal to each other: mx + b = mx + b

3.) Solve by subtracting and/or adding on both sides

4.) Divide to find 'x'

5.) Substitute the value of 'x' into one of the equations

6.) Solve for 'y'

7.) You have your coordinate! (x, y)

Good luck :)

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step-by-step explanation:

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option